Exergetic performance assessment of a ground-source heat pump drying system

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dc.contributor.authorKuzgunkaya, Ebru Hancioglu
dc.contributor.authorHepbasli, Arif
dc.date.accessioned2019-10-27T19:34:11Z
dc.date.available2019-10-27T19:34:11Z
dc.date.issued2007
dc.departmentEge Üniversitesien_US
dc.description.abstractIn evaluating the efficiency of heat pump (HP) systems, the most commonly used measure is the energy (or first law) efficiency, which is modified to a coefficient of performance (COP) for HP systems. However, for indicating the possibilities for thermodynamic improvement, energy analysis is inadequate and exergy analysis is needed. This study presents an exergetic assessment of a ground-source (or geothermal) HP (GSHP) drying system. This system was designed, constructed and tested in the Solar Energy Institute of Ege University, Izmir, Turkey. The exergy destructions in each of the components of the overall system are determined for average values of experimentally measured parameters. Exergy efficiencies of the system components are determined to assess their performances and to elucidate potentials for improvement. COP values for the GSHP unit and overall GSHP drying system are found to range between 1.63-2.88 and 1.45-2.65, respectively, while corresponding exergy efficiency values on a product/fuel basis are found to be 21.1 and 15.5% at a dead state temperature of 27 degrees C, respectively. Specific moisture extraction rate (SMER) on the system basis is obtained to be 0.122 kg kW(-1) h(-1). For drying systems, the so-called specific moisture exergetic rate (SMExR), which is defined as the ratio of the moisture removed in kg to the exergy input in kWh, is also proposed by the authors. The SMExR of the whole GSHP drying system is found to be 5.11 kg kW(-1) h(-1). Copyright (c) 2006 John Wiley & Sons, Ltd.en_US
dc.identifier.doi10.1002/er.1268
dc.identifier.endpage777en_US
dc.identifier.issn0363-907X
dc.identifier.issn1099-114X
dc.identifier.issn0363-907Xen_US
dc.identifier.issn1099-114Xen_US
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage760en_US
dc.identifier.urihttps://doi.org/10.1002/er.1268
dc.identifier.urihttps://hdl.handle.net/11454/39590
dc.identifier.volume31en_US
dc.identifier.wosWOS:000247227000002en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWileyen_US
dc.relation.ispartofInternational Journal of Energy Researchen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCOPen_US
dc.subjectdryingen_US
dc.subjectexergy analysisen_US
dc.subjectexergetic coefficient of performanceen_US
dc.subjectground-source heat pumpen_US
dc.subjectheat pumpen_US
dc.subjectlaurel leavesen_US
dc.subjectperformance evaluationen_US
dc.subjectSMERen_US
dc.subjectspecific moisture exergetic rateen_US
dc.titleExergetic performance assessment of a ground-source heat pump drying systemen_US
dc.typeArticleen_US

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